Lamp.



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W. C. COLEMAN.

LAMP.

APPLICATION FILED HOV. 17, 1909.

' Patented Apr. 18,1911.

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W. G. COLEMAN.

LAMP. AI-PLIUATION FILED NO?. 17, 1909.

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l 1/Q www?? W. C. COLEMAN.

LAMP.

APPLGATIOK FILED HOVJ'I. 1909.

Patented Apr. 18, 1911.

3 SHEETS-SHEET 3.

Y UNITED STATES WILLIAM of COLEMAN,

. 0F WICHITA, KANSAS.

LAMY.

Specification of Letters Patent.

Application filed November 17. 1909. Serial No. 528,58).

To all whom it may concern:

Be it known that l, Winnaar C. CoLnamN, ak citizen of the United States, residing at lVichita. in the county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Lamps, of which the following is a specitication.

The present invention relates to vapor lamps, and more particularly lamps of the type disclosed and claimed in my cci-pending application, Serial No. 506,295, tiled .luly 7, 1.909. ln one aspect, this invention involves certain improvements over the structure illustrated in said application.

One of the primary objects is to provide certain safety features, whereby danger of explosions is reduced to ainininmm, in the tiist place, by producing an exceedingly Vstrong font, inwhich the fuel conveyJng standard constitutes practically a tie boltv between the top and bottom walis'o' said font, secondly. by providing means which will effectively cut ott the flow of t'uel from the font, in case the upper portion of the lamp structure becomes broken olf, and thirdly, by preventing accumulations of liquid fuel in the miainpr chamber and producing a pilot. light which will insure a maintenance of the flames at the. burners.

Still another object is to provide novel, simple and etl'cctive means for supporting the shade by making certain elements of the lamp structure perform' the functions of suspending devices.

An embodiment of the invention that', is proving entirely satisfactory, is disclosed in the accompanying drawings, wherein Figure l is a side elevation partially in section of the lamp. Fig. 2 is a sectional View through the same on an enlarged scale. Fig. is a hori'fzontal sectional View on the line 3 3 of Fig. 1 Fig. 4 iS a detail Sectional view through a portion of the standard, illustrating the safety valve. Fig. 5 is a sectional View substantially on the line 5-5 of ig. and indicating the operation of thepilot. light. Fig. 6 is a det-ail vertical sectional View on the line 6-6 of Fig. 5.

i"ig. 7 is a plan View of a slightly modified forni of construction. Fig. 8 is a vertical sectional View therethrough. Fin'. 9 is a plan view of still a different embodiment of the cut-olf and controlling valve Structure. Fig-.10 is a vertical sectional View there.- through.

Similar reference numerals designate corresponding parts in all the figures of the drawings.

1l is employed. which is preferably of ornamental eonliguration, and has a top 1Q and a bottom 1?, the' latter being comparatively heavy and llanged to the sides or body of the font, as shown at i4. Suitable supporting feet if of yielding material are secured to the tlangc. A. combined tilting nipple and air pump coupling itl is mounted upon one side o the font, some distance below its upper end. A tubular standard, designated jects upward centrally from the font, and in the form illustrated, comprises sections 18 and lt), the ion i8 being disposed wilh- 'in the font, the section l5) being arranged .above the same, and' Said sect-ions being connected by a tubular coupling 20 threaded into the adjacent endsof the sections. A cap 2l is located on the coupling between the sections, and bears upon the top l2 ofthe font. A nut has a head bearin against the under side of the bottoni cnil a neck 23 that extends through said bot-toni and is threaded into the lower end of the section l. This neck is provided with inlet `ports JJ that communicate with. the interior of the tout and with the interior of the standard section. lt will tlnisbce.idcnt that the oil or liquid fuel under pressure within thc tout will be forced upwardly throuffh the standard. A portion oit the standard ircetly above the cap 2l, is preferably Surrounded by a handle sleeve Q5 that bears upon the cap 21 and is held in place by a set screw 2G threaded through a collar 27, constituting an ornamental top to the said sleeve.

ard section 19 and constituting an extension thereof, is a ve'aieal. vaporizing tube 9.8, within which is placed a wick. This wick preferably comprises a metal core rod 29 surrounded by asbestos 30. The vaporizing tube, being straight, it will be evident thatv the wick may be inserted into and removed from the upper end of said tube. Located below the wick, and preferably at. the juneture of the vaporizing tube with the section 19, is a valve scatplu'g 31 having an upper salve scat 32, and a lower chamber 33. Arranged in this chamber is a ball valve 34 that normally rests upon thebottom of the chamber, so as to permit the free upward as a whole by the reference numeral 17, pro-- Connected to the. upper end of the standlatcnted Apr. 18. 1911.v .i

In the embodiment disclosed, a base font.V

sage terminating in a downwardly extend- 'i the vaporizing tube, as hereinafter ex- -plained.

.Detachably threaded upon the upper end of the va orizing tube, is a coupling head 235 having,lr a iorizontallydisposed vapor passage 36 surrounded by'a vaive seat 3i'. said pasing out-let 38, to which is coupled a vapor delivery nozzle 39. The coupling has a horizontal extension 40 carrying a packing gland 41, and through this gland extends the stein 42 of avalve that is threaded into the extension and is movable into and out of coaction with the seat 37. A kuni-led head v43, secured to the outer end of the stein, constitutes means for actuating the valve. The nozzle 39 is threaded upon the coupling, and has a small discharge orifice 44 surrounded by an upstanding, boss 45 fitted within said nozzle. The nozzle depends within the horizontal inlet stem 46 of a vertical Bunsen, or combined air and vapor conducting, pipe 47 that is disposed alongside the vaporizin` tube 2S. This pipe 4'( is threaded through the top of a'inixing chamber 48 that is thus supported by the pipe, the lower end of said pipe extending downwardly nearly to the bottom of the chamber. The tube 47 is simported. by

-means of a collar 49 that surrounds the -t.hiinble 50 carriedby the vaporizing tube 2S and having aV peripheral groove therein. An outstanding set screw 5l, having a comparatively long stein, is threaded through the collar and engages in the groove of the thimble, thus holding the parts in the position illustrated in' Fig. 2.

The chamber 48 has a bottom opening.; normally closed by a plug 52, and is also provided with outstanding nipples 53 communicating with its upper portion and carrying depending burners 54 that also constitute mantle supports. said burners being disposed on opposite sides of the vapcrizing tube 28. The chamber 48 furthermore has in its lower portion a vent opening 55 constituting a drain through which any liquid in the chamber can discharge. lt will he observed by reference to Fi". 5, that this vent 55 is disposed directly opposite to the vaporizing tube 2S. The reason for this arrangement will be explained in the description of the operation of the lamp.

The shade for the lamp is designated 56, and is carried as usual, by a suspending..r ring 57 having set screws 58 that engage the upper portion of the shade. This ring is n'ovided with o enings, one of which is designated 59, w ich opening receives the outer end of the air inlet stem 46, the air regulating device G0 being detachably threaded on Asaid end. Another opposite opening 61 receives the outer portion of the set crew stem 5l, and an 'outstanding pin 62, carried bV-thc cellar 41. and .shown in Fig. 3, extends through another openingr 63. lt will thus be set-n that thc shade supporting ring' .3T is suspended by the serena. the stein -H and thc pin 6;. The head 3f furthcrmorii is provided Vwith an opstandingr projection 64. into which is threaded the stem (55 of a bell 66. this bell carrying a terminal ring 6T, by means of which the lamp may he suspended if desired.

The operation of the structure is substan- -tially as follows: Liquid fuel is'placed in the font 11. and is placed under air pressure. As long as the valve 42 is closed, no fuel can pass through the lamp, but if said valve is opened, this fuelwill pass upwardly through the standard into thc vaporizer. The vaporizer, being initially healed'by any suitable Ivnieans. will change the liquid into vapor.

which will pass through the passage 36, and discharge dmvnwardl) from thc nozzle 3.39.

The comparatively small oi'ilicc -l-l will` create a rctarding pressure in the vaporizcr. so that the upward flow -of liquid fuel through thc standard will he exceedingly slow. and consequently he valve 3l. shown in Fig. Jr. will maintain its inoperative position, permitting the passage of the fuel. The vapor' pas-sia;r downwardly through the pipe 4T. will curr)- air with it into the mixing chamber +S. and .the vaporizcd fuel will pass from .said chamber through the nippics 523 to thtl burners. where it will' he consumed, thus maintaining the usual inantles in 'incandesccnt condition.

It will 'b'.- noted that a single controlling: valve 42 is employed in the structure, which v alve regulates the vapor, as well as con trois thc passage of fuel through the lamp. As a result. the light can 'be turned up or down, or immediately extinguished by moans of said valve l2. The arrangement of the valve moreover places the packing and the handle outside the range of heat from the burner.

There are a number of iinpdttant advantages. for this structure, among which may be mentioned the following. The font is exceedingly strong to withstand any internal pressure thatmay be brought against it. the standard constituting a central lwie bolt. The valve 34 also adds to the security of the device. As above explained, as long as there is a retarding pressure in the vaporizer, and the oil feeds slowly through the standard, this valve 34 will be in its, open position, but if through any accident, theupper portion of the lamp structure should lbe broken otl and the pressure thereby relieved above the valve, the increased force of the flow would cause the valve to seat and cut otf such flow. The vent 55 is also an important feature, and performs two iisd fnnrtions. ln the first place, itavoids any danger ot thc mixing chamber i8 becoming ,filled with liquid fuel. for such fuel will flow out of the vent. ahonld it, from an)v cause, enter the mixing chamber. But a further, und perhaps more important fuue tion resides in the fact that it produces a pilot light. Of course. when the. lamp is in operation, a stream of vaporized fuel will i fion from he vent. and the. arranfrementis such the flame thus produeed,willstrike the mixture of air and va or is such that unless the dame is oonine by thev mantle, it. is'apt tr. blow off, or in other Words. become extinguished. It. may sometimes happen that one. Aor both mantles become aecidentally broken when there is no one about to notice the saine, and were it not for the pilot iight, the lamp might become exti1igrnialirilf as above explained. The vapoz'ize as a consequence, would become wol, the liquid feed. would How upwardly therethro g discharge from the nozzle into the mixing chamber. and thus' ilow down upon the. outside oi the lamp. Should an accident. of this kind occur with the present structure, the pilot light above described, wbuld nmintain'thc burners lighted at all tunes. and thus overcome the .objection above described.

, It will be noted that in this mechanism, the. features of the lamp structure are eniployed as supporting vmeans for the shade, thus reducing the number of elements and securing a symmetrical structure.

As an indication of how the mechanism may be modiied, attention is invited to Figs. '(-10 inclusive. In Figs. 7 and S, the vapori'/.in r tube QS-has the ei'mtrolling and amori valve casing 28"* secured to its upper und. the valve 4; being horizontally disposed as before. The vapor conveying means 3G terminates in a downwardly extending nozzle 39 that is introduced into iln upper vnd of the air and vapi'ir-coudiu-tin apipe H which pipe has a horizontal inletl stem 4'1". ln this form of structure, it will be observed that the valve is arran ed between the raporizing '.ube and nozzle, nt over said tube. The pipe 4T has a collar x" surrounding the tube and held in place by a set screw 51a. The collar also carries an onlstaneing pin 621. The stem 46, set screw 51S and pin G2 constitute the support for the shade ring indicated in dotted lines, and designated 57. In Figs. 9 and 10, the arranfemert niore closely approximates that '..."lo ed in Figs. 1-6 inclusive. The vaporizing tube is designated 28", and has se .w va

secured to its upper end a vapor waveving head 3G" 1n the form of an elbow that has :arrying a horizontal controlling and ciutoll' valve 42". Conneoted to the valve casing is the nozzle 39h entering the horizontal inlet. branch 4G of a combined air and va or -.ou lueling r pipe. 47". Ibis pipehas a eo lar 49" surrouniling the vaporizing tube 38", and secured thereto `b v a set screw 5l". A pin (12b, also carried by the collar, in mnneotion. with the .set sri-ew 5lb and inlet 5 secured to its free end the vaivc easing 35h l branch 46, constitutes means for support ing the shade holding i ing .,Tb.

From the foregoing it is thought that the construction, operation and many ad- 'vantages of the herein deseribed invention will be a parent to those. skilled in the art, without urtbor description, and it will be understood that various changes in the size,

"shape, proportion and minor details of construction may be resorted to without departing from the. spirit or sacrificing any of the advantages of the invention.

l Having th us, fully described my invention,

vwhat l claim as new, and desire to ,secure by Letters Patent, isz

1. In a lamp of the character set 'Forth the combination with a base font hm ing a top and a bottom., of a. tubular standard extending downwardly into the font and te minating short, of the bottom thereof, a

binding nut having a head bearing against the. underside of the bottom and a neel.: passing through the bottomV and threaded into the lower end of the standard, said neck having an inlet port Within the font; that.

communicates with the interior of the standard'and opens throu h one sideof the neck below said standar and vaporizing, Aair mixing and burning means carried by and associated with the standard.

ln a lamp of the character set. forth, the combination with a base font having a top and a bottom, of a tubular standard comprising up er and lower sections located end to end, an a coupling havingr its upper end threaded into the upper section and its lower end threaded into the lower section, the lower section being located in the font, the upper extending above the saaie, a cap located on the coupling and clamped between the adjacent ends of the sections and bean ing on top of the font, and vaporizing, air mixing and burning means carried by the standard.

3. n a lamp of the character set forth, the combination with a mixing c hamberpf means for introducing air and vapor thereinto, and an inverted burner connected to the upper portion of the mixing chamber and disposed opening in one wall that erinits the esca of` vapor to form a pi ot light for' tiig burner.

galon side the same said chamber havin an 4. In a iamp of the. character set forth, the

' combination withV a mixing chamber, of

means for introducing air and vapor thereinto, and a burner connected to the upper portion of the mixing chamber, said mixing chamber having a lower drain vent that also constitutes'means for forming a pilot light that maintains a fiame at thcburner.

' for defiecting said light into the range o f 5. In a lamp of the character set forth, the.

combination with amixing chamber, of means for introducing air and -'apor thereinto, a burner connected to the upper portion of the mixing chamber, said mixin chamber having a lower drain vent that ao constitutes means for forming a pilot light that A maintains a {iame at the burner, and means vapor issuing from the burner. Y

6. In a lamp ofthe character set forth, the combination with a mixing chamber, of spaced burners connected and located adjacent thereto, said chamber havin a vent forming a pilot` li ht, and means or divid ing the light an directing it toward the chambensaid chamber havinga lower flrain vent that forms a pilot light and directs the same against the vaporizlng tube, said tube dividing the Hams and directin it into the range of fuel issuing from the umers.

8. In a lamp of the character set forth, the

combination with a standard, forming av vaporizer, of vapor and air mlxing means movably mounted thereon'and including an outstanding air inlet, an outstanding set screw for securingl the mixing means against movement to the standard, and a shade holds ing device supported by the air inlet and setscrew. t., L

9. In a lamp of the character set' forth, the combination with a standard forming s. `vaporizer,.of vapor and air mixing means having a coilar slidabiy mounted on the va orizer, said means including an outstan ing for securing the collar to the standard, an outstanding pin carried-by the collar, and a shade suspending ring engaged with and supported by the outstanding vinlet nipple,

the setiscrew and the pin.

In testimon whereof, I atix my signature in presence o two witnesses.

WM. o. COLEMAN' Witnesses:

- D. S. CoLaMAN, r Geo. D. Slimme.

66. air inlet'nipple, an outstanding set rew 

